Polyatomic Ions

Front

What is the formula for Oxalate?

Back

C₂O₄²⁻

Front

What is the formula for Phosphate?

Back

PO₄³⁻

Front

What is the formula for Cyanide?

Back

CN⁻

Front

What is the formula for Nitrite?

Back

NO₂⁻

Front

What is the formula for Hydroxide?

Back

OH⁻

Front

Define a polyatomic ion.

Back

A polyatomic ion is a charged species composed of two or more atoms covalently bonded, that can act as a single unit in chemical reactions.

Front

Give an example of a polyatomic ion and its charge.

Back

Sulfate (SO₄²⁻)

Front

What is the charge of the Phosphate ion?

Back

-3

Front

What is the charge of the Hydroxide ion?

Back

-1

Front

What is the difference between Nitrite and Nitrate?

Back

Nitrite (NO₂⁻) has one less oxygen atom than Nitrate (NO₃⁻).